Overview

How to Join

Talk to Darkdiver Grandahl in all three of his locations and exhaust his dialogue. It doesn't matter which order you visit these locations.

Black Gulch
Drop down near the two worms, you should see a door. In order to open it, drop down again. Continue into the cave to find two Elite Giants, killing them will give you the Forgotten Key to the door. He can be found behind it.

Shaded Woods
Go right from the Giant Basilisk (after the Shaded Ruins bonfire) until you come to the path to the boss between the two buildings. Instead of going through, look around the nearby grassy area, there is scaffolding where you will drop down to the area with him.

Drangleic Castle
In the room near the first bonfire with six doors you have to active with souls. Activate and go through the last door on the left and you will fall through the floor. The Under Drangleic Castle bonfire will be nearby, as well as Darkdiver Grandahl.

After you defeat Darklurker, all entrances will be permanently opened until the next NG+ cycle. Using a Bonfire Ascetic on the Under Castle Drangleic bonfire will revive him, as well as the four phantoms, although the brazier will stay lit. The other two bonfires do not work. This means Darklurker can only be reached by going through the Dark Chasm of Old area in Drangleic Castle. Also, you still need to be a member of the Pilgrims of Dark covenant to enter the portal, but you will not need a human effigy.

The dungeons themselves contain multiple abyss phantoms, they will be a mix of tanks, a miracle-casters and a certain specialist (archer, swordsman, sorcerer or pyromancer). They are very fast and deal high damage, and you will often have to fight them simultaneously, so doing this in the endgame is recommended.

The goal in these dungeons is to light a sconce with a torch (use a Flame Butterfly). After doing so, find a fog gate that will disable when the last phantom is defeated and drop down into the hole. Instead of falling to your death, you will be transported out of the dungeon.

When all three Dungeons are cleared and the fires lit, dropping down will lead to the Darklurker boss fight.

If an invader deals the finishing blow to any player (either the host or another invader), they fulfill the conditions of their invasion, receive a Bonfire Ascetic and souls, and are returned to their own world. If a host deals the finishing blow to an invader, they also receive a Bonfire Ascetic and souls. If the host dies, only the invader who dealt the killing blow is awarded and all other invaders are returned to their own world.